Sederhanakan bentuk akar berikut.

a. √112

b. 9√2 + √72 − √578

c. 9√5 − √125 + √20

d. √0,000121

$frac{3 sqrt{6} }{ sqrt{12} }$

Sederhanakan bentuk akar berikut.

Penjelasan dengan langkah-langkah:

$a. sqrt{112} = sqrt{16} times sqrt{7 } = 4 sqrt{7}$

$b.9 sqrt{2} + sqrt{72} - sqrt{578} = 9 sqrt{2} + ( sqrt{36} times sqrt{2} ) - ( sqrt{289} times sqrt{2} ) = 9 sqrt{2} + 6 sqrt{2} - 17 sqrt{2} = - 2 sqrt{2}$

$c. : 9 sqrt{5} - sqrt{125} + sqrt{20} = 9 sqrt{5} - ( sqrt{25} times sqrt{5} ) + ( sqrt{4} times sqrt{5} ) = 9 sqrt{5} - 5 sqrt{5} + 2 sqrt{5} = 6 sqrt{5}$

$d. : sqrt{0.000121} = sqrt{ frac{121}{1000000} } = frac{ sqrt{121} }{ sqrt{1000000} } = frac{11}{1000} = 0.011$